1. Brel’, A.K., Lisina, S.V., and Popov, S.S., RU Patent no. 2601309, 2016.
2. Betebenner, D.A., DeGoey, D.A., Maring, C.J., Krueger, A.C., Iwasaki, N., Rockway, T.W., Cooper, C.S., Anderson, D.D., Donner, P.L., Green, B.E., Kempf, D.J., Liu, D., McDaniel, K.F., Madigan, D.L., Motter, C.E., Pratt, J.K., Shanley, J.P., Tufano, M.D., Wagner, R., Zhang, R., Molla, A., Mo, H., PilotMatias, T.J., Masse, S.V.L., Carrick, R.J., He, W., Lu, L., and Grampovnik, D.J., US Patent no. 7910595, 2011.
3. Nguien, T.T., RU Patent no. 2174985, 2001.
4. Brel, A.K., Lisina, S.V., Salomatina, J.N., and Kovalev, D.G., Pharm. Chem. J., 2014, vol. 47, p. 521. https://doi.org/10.1007/s11094-014-0995-9
5. Bruckner, R., Organic Mechanism: Reactions, Stereochemistry and Synthesis, Heidelberg: Springer, 2010.